* {
    margin: 0;
    padding: 0;
}

ul {
    list-style: none;
}

.mybanner {
    width: 730px;
    height: 454px;
    position: relative;
    margin: 50px auto;
    overflow: hidden;
}

.hot {
    /* 设置ul的总的宽度 */
    /* 伸缩盒子 */
    display: flex;
    position: absolute;
    top: 0px;
    left: 0px;
    /* 设置过渡的时间 */
    transition: transform .5s ease;
}

.hot li {
    float: left;
}

.arrow span {
    /* display: none; */
    width: 20px;
    height: 30px;
    background-color: #000;
    opacity: 0.7;
    color: #fff;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 20px;
    font-weight: 400;
    font-weight: 200;
    line-height: 30px;
    text-align: center;
    cursor: pointer;
}

.prev {
    left: 0;
    border-bottom-right-radius: 15px;
    border-top-right-radius: 15px;
}

.next {
    right: 0;
    border-bottom-left-radius: 15px;
    border-top-left-radius: 15px;
}

.circle-list {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 30px;
    list-style: none;
}

.circle-list li {
    width: 10px;
    height: 10px;
    background-color: white;
    border-radius: 5px;
    margin: 2px;
    float: left;
}

.circle-list .active {
    background-color: red;
}